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From "Yossi Ittach" <yoss...@gmail.com>
Subject Re: Building an Hadoop & Hbase Cluster
Date Tue, 16 Dec 2008 15:20:26 GMT
A bit too late , but thank you all.  I will tell you about my experience
when it' over.


Vale et me ama
Yossi


On Sun, Dec 14, 2008 at 7:22 PM, Jean-Daniel Cryans <jdcryans@gmail.com>wrote:

> It would be interesting to see how HBase would react to a loss of the NN
> when trying to shutdown HBase in the following minutes, but I think it
> would
> be better to try than just losing the two at the same time.
>
> J-D
>
> On Sun, Dec 14, 2008 at 12:13 PM, Wesley Chow <wes.chow@s7labs.com> wrote:
>
> >
> >  3. Can I run the NameNode and the HBaseMaster on the same machine?
> >>>
> >>
> >>
> >  3. No, that would make 2 SPOFs at the same place. (but we are currently
> >> integrating Zookeeper in HBase so the HMaster SPOF will be fixed
> hopefully
> >> in 0.20)
> >>
> >
> > Isn't it the case that if the NN goes down then HBase doesn't function
> > properly? If so, then from the perspective of HBase reliability, you'd
> want
> > to have the HBaseMaster on the same machine as NN, because that would
> make a
> > single machine a point of failure, whereas having them on separate
> machines
> > would mean you'd have 2 machines that are each single point of failures.
> >
> >
> > Wes
> >
> >
>

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